./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/02-base_26-malloc_struct.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/02-base_26-malloc_struct.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 19:55:57,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:55:57,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:55:57,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:55:57,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:55:57,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:55:57,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:55:57,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:55:57,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:55:57,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:55:57,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:55:57,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:55:57,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:55:57,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:55:57,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:55:57,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:55:57,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:55:57,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:55:57,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:55:57,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:55:57,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:55:57,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:55:57,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:55:57,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:55:58,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:55:58,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:55:58,004 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:55:58,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:55:58,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:55:58,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:55:58,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:55:58,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:55:58,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:55:58,011 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:55:58,012 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:55:58,012 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:55:58,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:55:58,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:55:58,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:55:58,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:55:58,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:55:58,015 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:55:58,051 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:55:58,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:55:58,052 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:55:58,052 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:55:58,053 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:55:58,053 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:55:58,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:55:58,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:55:58,053 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:55:58,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:55:58,054 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:55:58,054 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:55:58,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:55:58,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:55:58,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:55:58,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:55:58,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:55:58,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:55:58,055 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:55:58,056 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:55:58,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:55:58,056 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:55:58,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:55:58,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:55:58,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:55:58,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:55:58,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:55:58,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:55:58,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:55:58,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:55:58,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:55:58,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:55:58,058 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:55:58,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:55:58,058 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:55:58,058 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:55:58,058 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:55:58,058 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71b70db56146daaa7371fed58b975e1add8fa8ab54b0a1b08c677a431a619350 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:55:58,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:55:58,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:55:58,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:55:58,318 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:55:58,319 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:55:58,329 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/02-base_26-malloc_struct.i [2023-08-31 19:55:59,377 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:55:59,587 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:55:59,587 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/02-base_26-malloc_struct.i [2023-08-31 19:55:59,598 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1f453ed7/dc5adc89680944c487edb2ca8c6826d4/FLAGc7a9b9903 [2023-08-31 19:55:59,608 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1f453ed7/dc5adc89680944c487edb2ca8c6826d4 [2023-08-31 19:55:59,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:55:59,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:55:59,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:55:59,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:55:59,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:55:59,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:55:59" (1/1) ... [2023-08-31 19:55:59,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@762e02ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:55:59, skipping insertion in model container [2023-08-31 19:55:59,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:55:59" (1/1) ... [2023-08-31 19:55:59,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:55:59,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:55:59,978 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:55:59,987 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:56:00,028 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:56:00,098 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:56:00,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:00 WrapperNode [2023-08-31 19:56:00,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:56:00,099 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:56:00,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:56:00,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:56:00,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:00" (1/1) ... [2023-08-31 19:56:00,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:00" (1/1) ... [2023-08-31 19:56:00,144 INFO L138 Inliner]: procedures = 365, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2023-08-31 19:56:00,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:56:00,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:56:00,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:56:00,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:56:00,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:00" (1/1) ... [2023-08-31 19:56:00,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:00" (1/1) ... [2023-08-31 19:56:00,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:00" (1/1) ... [2023-08-31 19:56:00,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:00" (1/1) ... [2023-08-31 19:56:00,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:00" (1/1) ... [2023-08-31 19:56:00,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:00" (1/1) ... [2023-08-31 19:56:00,180 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:00" (1/1) ... [2023-08-31 19:56:00,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:00" (1/1) ... [2023-08-31 19:56:00,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:56:00,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:56:00,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:56:00,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:56:00,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:00" (1/1) ... [2023-08-31 19:56:00,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:56:00,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:56:00,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 19:56:00,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 19:56:00,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:56:00,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:56:00,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:56:00,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:56:00,258 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 19:56:00,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-31 19:56:00,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:56:00,259 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 19:56:00,259 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 19:56:00,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 19:56:00,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:56:00,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:56:00,260 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 19:56:00,396 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:56:00,397 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:56:00,558 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:56:00,563 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:56:00,563 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 19:56:00,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:56:00 BoogieIcfgContainer [2023-08-31 19:56:00,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:56:00,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:56:00,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:56:00,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:56:00,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:55:59" (1/3) ... [2023-08-31 19:56:00,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff11e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:56:00, skipping insertion in model container [2023-08-31 19:56:00,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:56:00" (2/3) ... [2023-08-31 19:56:00,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff11e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:56:00, skipping insertion in model container [2023-08-31 19:56:00,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:56:00" (3/3) ... [2023-08-31 19:56:00,573 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_26-malloc_struct.i [2023-08-31 19:56:00,582 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:56:00,593 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:56:00,593 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-31 19:56:00,593 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:56:00,655 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 19:56:00,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 93 transitions, 191 flow [2023-08-31 19:56:00,704 INFO L130 PetriNetUnfolder]: 0/92 cut-off events. [2023-08-31 19:56:00,705 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:56:00,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 92 events. 0/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 19:56:00,707 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 93 transitions, 191 flow [2023-08-31 19:56:00,709 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 92 transitions, 187 flow [2023-08-31 19:56:00,711 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:56:00,717 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 92 transitions, 187 flow [2023-08-31 19:56:00,719 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 92 transitions, 187 flow [2023-08-31 19:56:00,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 92 transitions, 187 flow [2023-08-31 19:56:00,741 INFO L130 PetriNetUnfolder]: 0/92 cut-off events. [2023-08-31 19:56:00,742 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:56:00,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 92 events. 0/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 19:56:00,743 INFO L119 LiptonReduction]: Number of co-enabled transitions 1860 [2023-08-31 19:56:02,168 INFO L134 LiptonReduction]: Checked pairs total: 12178 [2023-08-31 19:56:02,168 INFO L136 LiptonReduction]: Total number of compositions: 54 [2023-08-31 19:56:02,183 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:56:02,187 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1d21af70, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:56:02,192 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-08-31 19:56:02,193 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2023-08-31 19:56:02,193 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:56:02,193 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:02,194 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 19:56:02,194 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 19:56:02,197 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:02,197 INFO L85 PathProgramCache]: Analyzing trace with hash 301, now seen corresponding path program 1 times [2023-08-31 19:56:02,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:02,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695461421] [2023-08-31 19:56:02,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:02,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:02,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:02,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:02,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695461421] [2023-08-31 19:56:02,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695461421] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:02,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:02,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 19:56:02,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880690353] [2023-08-31 19:56:02,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:02,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 19:56:02,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:02,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 19:56:02,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 19:56:02,323 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 147 [2023-08-31 19:56:02,324 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 45 transitions, 93 flow. Second operand has 2 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:02,325 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:02,325 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 147 [2023-08-31 19:56:02,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:02,389 INFO L130 PetriNetUnfolder]: 30/173 cut-off events. [2023-08-31 19:56:02,391 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:56:02,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 173 events. 30/173 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 700 event pairs, 30 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 242. Up to 74 conditions per place. [2023-08-31 19:56:02,396 INFO L137 encePairwiseOnDemand]: 145/147 looper letters, 13 selfloop transitions, 0 changer transitions 0/43 dead transitions. [2023-08-31 19:56:02,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 43 transitions, 115 flow [2023-08-31 19:56:02,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 19:56:02,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 19:56:02,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 199 transitions. [2023-08-31 19:56:02,407 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6768707482993197 [2023-08-31 19:56:02,407 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 199 transitions. [2023-08-31 19:56:02,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 199 transitions. [2023-08-31 19:56:02,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:02,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 199 transitions. [2023-08-31 19:56:02,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:02,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:02,420 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:02,421 INFO L175 Difference]: Start difference. First operand has 49 places, 45 transitions, 93 flow. Second operand 2 states and 199 transitions. [2023-08-31 19:56:02,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 43 transitions, 115 flow [2023-08-31 19:56:02,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 43 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:56:02,424 INFO L231 Difference]: Finished difference. Result has 47 places, 43 transitions, 88 flow [2023-08-31 19:56:02,426 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=88, PETRI_PLACES=47, PETRI_TRANSITIONS=43} [2023-08-31 19:56:02,428 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -2 predicate places. [2023-08-31 19:56:02,428 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 43 transitions, 88 flow [2023-08-31 19:56:02,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:02,429 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:02,429 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 19:56:02,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:56:02,429 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 19:56:02,431 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:02,431 INFO L85 PathProgramCache]: Analyzing trace with hash 285614288, now seen corresponding path program 1 times [2023-08-31 19:56:02,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:02,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229260283] [2023-08-31 19:56:02,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:02,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:02,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:02,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:02,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229260283] [2023-08-31 19:56:02,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229260283] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:02,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:02,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:56:02,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591886150] [2023-08-31 19:56:02,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:02,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:56:02,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:02,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:56:02,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:56:02,543 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 147 [2023-08-31 19:56:02,544 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 43 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:02,544 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:02,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 147 [2023-08-31 19:56:02,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:02,575 INFO L130 PetriNetUnfolder]: 60/260 cut-off events. [2023-08-31 19:56:02,575 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:56:02,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 403 conditions, 260 events. 60/260 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1164 event pairs, 60 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 400. Up to 138 conditions per place. [2023-08-31 19:56:02,577 INFO L137 encePairwiseOnDemand]: 143/147 looper letters, 17 selfloop transitions, 1 changer transitions 0/40 dead transitions. [2023-08-31 19:56:02,577 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 118 flow [2023-08-31 19:56:02,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:56:02,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:56:02,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2023-08-31 19:56:02,579 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5850340136054422 [2023-08-31 19:56:02,579 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 258 transitions. [2023-08-31 19:56:02,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 258 transitions. [2023-08-31 19:56:02,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:02,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 258 transitions. [2023-08-31 19:56:02,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:02,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:02,581 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:02,581 INFO L175 Difference]: Start difference. First operand has 47 places, 43 transitions, 88 flow. Second operand 3 states and 258 transitions. [2023-08-31 19:56:02,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 118 flow [2023-08-31 19:56:02,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 40 transitions, 118 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:56:02,582 INFO L231 Difference]: Finished difference. Result has 46 places, 40 transitions, 84 flow [2023-08-31 19:56:02,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=46, PETRI_TRANSITIONS=40} [2023-08-31 19:56:02,583 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2023-08-31 19:56:02,583 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 40 transitions, 84 flow [2023-08-31 19:56:02,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:02,584 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:02,584 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:02,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:56:02,584 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 19:56:02,585 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:02,585 INFO L85 PathProgramCache]: Analyzing trace with hash 4537460, now seen corresponding path program 1 times [2023-08-31 19:56:02,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:02,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099504926] [2023-08-31 19:56:02,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:02,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:03,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:03,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:03,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099504926] [2023-08-31 19:56:03,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099504926] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:03,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:03,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:56:03,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777369988] [2023-08-31 19:56:03,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:03,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:56:03,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:03,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:56:03,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:56:03,091 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 147 [2023-08-31 19:56:03,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 40 transitions, 84 flow. Second operand has 6 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:03,092 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:03,092 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 147 [2023-08-31 19:56:03,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:03,228 INFO L130 PetriNetUnfolder]: 193/474 cut-off events. [2023-08-31 19:56:03,228 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:56:03,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 898 conditions, 474 events. 193/474 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2311 event pairs, 74 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 894. Up to 286 conditions per place. [2023-08-31 19:56:03,234 INFO L137 encePairwiseOnDemand]: 132/147 looper letters, 56 selfloop transitions, 37 changer transitions 0/108 dead transitions. [2023-08-31 19:56:03,234 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 108 transitions, 406 flow [2023-08-31 19:56:03,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:56:03,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:56:03,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 532 transitions. [2023-08-31 19:56:03,239 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6031746031746031 [2023-08-31 19:56:03,239 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 532 transitions. [2023-08-31 19:56:03,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 532 transitions. [2023-08-31 19:56:03,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:03,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 532 transitions. [2023-08-31 19:56:03,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.66666666666667) internal successors, (532), 6 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:03,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:03,244 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:03,244 INFO L175 Difference]: Start difference. First operand has 46 places, 40 transitions, 84 flow. Second operand 6 states and 532 transitions. [2023-08-31 19:56:03,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 108 transitions, 406 flow [2023-08-31 19:56:03,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 108 transitions, 405 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:56:03,246 INFO L231 Difference]: Finished difference. Result has 54 places, 78 transitions, 316 flow [2023-08-31 19:56:03,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=316, PETRI_PLACES=54, PETRI_TRANSITIONS=78} [2023-08-31 19:56:03,248 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 5 predicate places. [2023-08-31 19:56:03,250 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 78 transitions, 316 flow [2023-08-31 19:56:03,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.33333333333333) internal successors, (446), 6 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:03,251 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:03,251 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:03,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:56:03,251 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 19:56:03,252 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:03,252 INFO L85 PathProgramCache]: Analyzing trace with hash 431746594, now seen corresponding path program 1 times [2023-08-31 19:56:03,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:03,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608128841] [2023-08-31 19:56:03,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:03,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:03,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:03,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:03,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:03,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608128841] [2023-08-31 19:56:03,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608128841] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:03,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:03,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:56:03,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277357824] [2023-08-31 19:56:03,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:03,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:56:03,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:03,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:56:03,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:56:03,507 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 147 [2023-08-31 19:56:03,507 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 78 transitions, 316 flow. Second operand has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:03,508 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:03,508 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 147 [2023-08-31 19:56:03,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:03,619 INFO L130 PetriNetUnfolder]: 265/777 cut-off events. [2023-08-31 19:56:03,620 INFO L131 PetriNetUnfolder]: For 239/255 co-relation queries the response was YES. [2023-08-31 19:56:03,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1925 conditions, 777 events. 265/777 cut-off events. For 239/255 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4871 event pairs, 37 based on Foata normal form. 18/782 useless extension candidates. Maximal degree in co-relation 1917. Up to 242 conditions per place. [2023-08-31 19:56:03,627 INFO L137 encePairwiseOnDemand]: 136/147 looper letters, 75 selfloop transitions, 32 changer transitions 0/142 dead transitions. [2023-08-31 19:56:03,627 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 142 transitions, 746 flow [2023-08-31 19:56:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:56:03,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:56:03,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 556 transitions. [2023-08-31 19:56:03,629 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6303854875283447 [2023-08-31 19:56:03,629 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 556 transitions. [2023-08-31 19:56:03,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 556 transitions. [2023-08-31 19:56:03,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:03,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 556 transitions. [2023-08-31 19:56:03,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.66666666666667) internal successors, (556), 6 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:03,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:03,635 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:03,636 INFO L175 Difference]: Start difference. First operand has 54 places, 78 transitions, 316 flow. Second operand 6 states and 556 transitions. [2023-08-31 19:56:03,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 142 transitions, 746 flow [2023-08-31 19:56:03,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 142 transitions, 746 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:56:03,644 INFO L231 Difference]: Finished difference. Result has 63 places, 104 transitions, 574 flow [2023-08-31 19:56:03,644 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=574, PETRI_PLACES=63, PETRI_TRANSITIONS=104} [2023-08-31 19:56:03,645 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 14 predicate places. [2023-08-31 19:56:03,645 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 104 transitions, 574 flow [2023-08-31 19:56:03,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.5) internal successors, (483), 6 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:03,646 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:03,647 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:03,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 19:56:03,647 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 19:56:03,648 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:03,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1883342013, now seen corresponding path program 1 times [2023-08-31 19:56:03,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:03,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84395225] [2023-08-31 19:56:03,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:03,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:03,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:03,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:03,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84395225] [2023-08-31 19:56:03,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84395225] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:03,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:03,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 19:56:03,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978386586] [2023-08-31 19:56:03,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:03,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:56:03,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:03,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:56:03,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:56:03,715 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 147 [2023-08-31 19:56:03,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 104 transitions, 574 flow. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:03,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:03,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 147 [2023-08-31 19:56:03,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:03,748 INFO L130 PetriNetUnfolder]: 45/203 cut-off events. [2023-08-31 19:56:03,748 INFO L131 PetriNetUnfolder]: For 102/103 co-relation queries the response was YES. [2023-08-31 19:56:03,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 505 conditions, 203 events. 45/203 cut-off events. For 102/103 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 757 event pairs, 9 based on Foata normal form. 9/207 useless extension candidates. Maximal degree in co-relation 492. Up to 64 conditions per place. [2023-08-31 19:56:03,749 INFO L137 encePairwiseOnDemand]: 143/147 looper letters, 14 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2023-08-31 19:56:03,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 62 transitions, 296 flow [2023-08-31 19:56:03,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:56:03,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:56:03,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2023-08-31 19:56:03,751 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6326530612244898 [2023-08-31 19:56:03,751 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 279 transitions. [2023-08-31 19:56:03,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 279 transitions. [2023-08-31 19:56:03,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:03,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 279 transitions. [2023-08-31 19:56:03,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:03,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:03,753 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:03,754 INFO L175 Difference]: Start difference. First operand has 63 places, 104 transitions, 574 flow. Second operand 3 states and 279 transitions. [2023-08-31 19:56:03,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 62 transitions, 296 flow [2023-08-31 19:56:03,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 62 transitions, 256 flow, removed 13 selfloop flow, removed 7 redundant places. [2023-08-31 19:56:03,757 INFO L231 Difference]: Finished difference. Result has 57 places, 60 transitions, 224 flow [2023-08-31 19:56:03,757 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=57, PETRI_TRANSITIONS=60} [2023-08-31 19:56:03,759 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 8 predicate places. [2023-08-31 19:56:03,759 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 60 transitions, 224 flow [2023-08-31 19:56:03,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:03,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:03,760 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:03,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 19:56:03,760 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 19:56:03,761 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:03,761 INFO L85 PathProgramCache]: Analyzing trace with hash 2058288517, now seen corresponding path program 1 times [2023-08-31 19:56:03,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:03,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717936799] [2023-08-31 19:56:03,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:03,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:03,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:03,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:03,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:03,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717936799] [2023-08-31 19:56:03,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717936799] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:03,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:03,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:56:03,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112883812] [2023-08-31 19:56:03,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:03,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:56:03,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:03,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:56:03,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:56:04,041 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 147 [2023-08-31 19:56:04,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 60 transitions, 224 flow. Second operand has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:04,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:04,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 147 [2023-08-31 19:56:04,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:04,152 INFO L130 PetriNetUnfolder]: 151/421 cut-off events. [2023-08-31 19:56:04,153 INFO L131 PetriNetUnfolder]: For 129/132 co-relation queries the response was YES. [2023-08-31 19:56:04,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1102 conditions, 421 events. 151/421 cut-off events. For 129/132 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1885 event pairs, 22 based on Foata normal form. 0/402 useless extension candidates. Maximal degree in co-relation 1092. Up to 257 conditions per place. [2023-08-31 19:56:04,155 INFO L137 encePairwiseOnDemand]: 133/147 looper letters, 54 selfloop transitions, 44 changer transitions 8/120 dead transitions. [2023-08-31 19:56:04,155 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 120 transitions, 645 flow [2023-08-31 19:56:04,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:56:04,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:56:04,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 532 transitions. [2023-08-31 19:56:04,156 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6031746031746031 [2023-08-31 19:56:04,156 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 532 transitions. [2023-08-31 19:56:04,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 532 transitions. [2023-08-31 19:56:04,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:04,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 532 transitions. [2023-08-31 19:56:04,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.66666666666667) internal successors, (532), 6 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:04,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:04,159 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:04,159 INFO L175 Difference]: Start difference. First operand has 57 places, 60 transitions, 224 flow. Second operand 6 states and 532 transitions. [2023-08-31 19:56:04,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 120 transitions, 645 flow [2023-08-31 19:56:04,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 120 transitions, 633 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:56:04,162 INFO L231 Difference]: Finished difference. Result has 66 places, 99 transitions, 568 flow [2023-08-31 19:56:04,162 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=568, PETRI_PLACES=66, PETRI_TRANSITIONS=99} [2023-08-31 19:56:04,162 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 17 predicate places. [2023-08-31 19:56:04,162 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 99 transitions, 568 flow [2023-08-31 19:56:04,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.83333333333333) internal successors, (461), 6 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:04,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:04,163 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:04,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 19:56:04,163 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 19:56:04,164 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:04,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1299235815, now seen corresponding path program 1 times [2023-08-31 19:56:04,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:04,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862276554] [2023-08-31 19:56:04,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:04,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:04,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:04,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:04,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862276554] [2023-08-31 19:56:04,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862276554] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:04,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:04,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:56:04,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69728196] [2023-08-31 19:56:04,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:04,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:56:04,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:04,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:56:04,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:56:04,420 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 147 [2023-08-31 19:56:04,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 99 transitions, 568 flow. Second operand has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:04,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:04,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 147 [2023-08-31 19:56:04,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:04,530 INFO L130 PetriNetUnfolder]: 159/446 cut-off events. [2023-08-31 19:56:04,530 INFO L131 PetriNetUnfolder]: For 404/420 co-relation queries the response was YES. [2023-08-31 19:56:04,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1513 conditions, 446 events. 159/446 cut-off events. For 404/420 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2056 event pairs, 28 based on Foata normal form. 0/433 useless extension candidates. Maximal degree in co-relation 1498. Up to 292 conditions per place. [2023-08-31 19:56:04,532 INFO L137 encePairwiseOnDemand]: 137/147 looper letters, 62 selfloop transitions, 25 changer transitions 11/130 dead transitions. [2023-08-31 19:56:04,532 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 130 transitions, 926 flow [2023-08-31 19:56:04,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:56:04,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:56:04,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 519 transitions. [2023-08-31 19:56:04,534 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5884353741496599 [2023-08-31 19:56:04,534 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 519 transitions. [2023-08-31 19:56:04,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 519 transitions. [2023-08-31 19:56:04,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:04,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 519 transitions. [2023-08-31 19:56:04,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 86.5) internal successors, (519), 6 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:04,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:04,537 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:04,537 INFO L175 Difference]: Start difference. First operand has 66 places, 99 transitions, 568 flow. Second operand 6 states and 519 transitions. [2023-08-31 19:56:04,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 130 transitions, 926 flow [2023-08-31 19:56:04,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 130 transitions, 908 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-31 19:56:04,541 INFO L231 Difference]: Finished difference. Result has 75 places, 115 transitions, 733 flow [2023-08-31 19:56:04,541 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=733, PETRI_PLACES=75, PETRI_TRANSITIONS=115} [2023-08-31 19:56:04,542 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 26 predicate places. [2023-08-31 19:56:04,542 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 115 transitions, 733 flow [2023-08-31 19:56:04,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.83333333333333) internal successors, (479), 6 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:04,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:04,543 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:04,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 19:56:04,543 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 19:56:04,543 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:04,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1407489266, now seen corresponding path program 1 times [2023-08-31 19:56:04,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:04,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229118419] [2023-08-31 19:56:04,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:04,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:04,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:04,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:04,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229118419] [2023-08-31 19:56:04,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229118419] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:04,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:04,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-31 19:56:04,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811528207] [2023-08-31 19:56:04,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:04,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-31 19:56:04,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:04,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-31 19:56:04,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-31 19:56:05,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 147 [2023-08-31 19:56:05,058 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 115 transitions, 733 flow. Second operand has 8 states, 8 states have (on average 72.125) internal successors, (577), 8 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:05,058 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:05,058 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 147 [2023-08-31 19:56:05,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:05,146 INFO L130 PetriNetUnfolder]: 144/391 cut-off events. [2023-08-31 19:56:05,147 INFO L131 PetriNetUnfolder]: For 505/523 co-relation queries the response was YES. [2023-08-31 19:56:05,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1510 conditions, 391 events. 144/391 cut-off events. For 505/523 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1682 event pairs, 23 based on Foata normal form. 10/397 useless extension candidates. Maximal degree in co-relation 1490. Up to 180 conditions per place. [2023-08-31 19:56:05,149 INFO L137 encePairwiseOnDemand]: 140/147 looper letters, 82 selfloop transitions, 26 changer transitions 8/149 dead transitions. [2023-08-31 19:56:05,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 149 transitions, 1193 flow [2023-08-31 19:56:05,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 19:56:05,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 19:56:05,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 539 transitions. [2023-08-31 19:56:05,150 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2023-08-31 19:56:05,150 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 539 transitions. [2023-08-31 19:56:05,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 539 transitions. [2023-08-31 19:56:05,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:05,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 539 transitions. [2023-08-31 19:56:05,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 77.0) internal successors, (539), 7 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:05,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:05,153 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:05,153 INFO L175 Difference]: Start difference. First operand has 75 places, 115 transitions, 733 flow. Second operand 7 states and 539 transitions. [2023-08-31 19:56:05,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 149 transitions, 1193 flow [2023-08-31 19:56:05,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 149 transitions, 1125 flow, removed 28 selfloop flow, removed 2 redundant places. [2023-08-31 19:56:05,158 INFO L231 Difference]: Finished difference. Result has 78 places, 114 transitions, 713 flow [2023-08-31 19:56:05,159 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=713, PETRI_PLACES=78, PETRI_TRANSITIONS=114} [2023-08-31 19:56:05,159 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 29 predicate places. [2023-08-31 19:56:05,159 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 114 transitions, 713 flow [2023-08-31 19:56:05,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 72.125) internal successors, (577), 8 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:05,160 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:05,160 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:05,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 19:56:05,160 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 19:56:05,160 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:05,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1511329020, now seen corresponding path program 1 times [2023-08-31 19:56:05,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:05,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541815875] [2023-08-31 19:56:05,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:05,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:56:05,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:56:05,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:56:05,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541815875] [2023-08-31 19:56:05,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541815875] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:56:05,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:56:05,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-31 19:56:05,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892315619] [2023-08-31 19:56:05,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:56:05,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-31 19:56:05,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:56:05,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-31 19:56:05,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-31 19:56:05,578 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 147 [2023-08-31 19:56:05,579 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 114 transitions, 713 flow. Second operand has 8 states, 8 states have (on average 73.625) internal successors, (589), 8 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:05,579 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:56:05,579 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 147 [2023-08-31 19:56:05,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:56:05,774 INFO L130 PetriNetUnfolder]: 188/498 cut-off events. [2023-08-31 19:56:05,774 INFO L131 PetriNetUnfolder]: For 685/696 co-relation queries the response was YES. [2023-08-31 19:56:05,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1998 conditions, 498 events. 188/498 cut-off events. For 685/696 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2339 event pairs, 21 based on Foata normal form. 17/514 useless extension candidates. Maximal degree in co-relation 1979. Up to 149 conditions per place. [2023-08-31 19:56:05,780 INFO L137 encePairwiseOnDemand]: 135/147 looper letters, 113 selfloop transitions, 52 changer transitions 11/189 dead transitions. [2023-08-31 19:56:05,780 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 189 transitions, 1548 flow [2023-08-31 19:56:05,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-31 19:56:05,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-31 19:56:05,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 598 transitions. [2023-08-31 19:56:05,784 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5811467444120505 [2023-08-31 19:56:05,784 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 598 transitions. [2023-08-31 19:56:05,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 598 transitions. [2023-08-31 19:56:05,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:56:05,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 598 transitions. [2023-08-31 19:56:05,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 85.42857142857143) internal successors, (598), 7 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:05,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:05,788 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:05,788 INFO L175 Difference]: Start difference. First operand has 78 places, 114 transitions, 713 flow. Second operand 7 states and 598 transitions. [2023-08-31 19:56:05,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 189 transitions, 1548 flow [2023-08-31 19:56:05,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 189 transitions, 1442 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-31 19:56:05,795 INFO L231 Difference]: Finished difference. Result has 82 places, 131 transitions, 975 flow [2023-08-31 19:56:05,795 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=975, PETRI_PLACES=82, PETRI_TRANSITIONS=131} [2023-08-31 19:56:05,796 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 33 predicate places. [2023-08-31 19:56:05,796 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 131 transitions, 975 flow [2023-08-31 19:56:05,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 73.625) internal successors, (589), 8 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:56:05,797 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:56:05,797 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:05,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 19:56:05,797 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-31 19:56:05,798 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:56:05,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1054341797, now seen corresponding path program 1 times [2023-08-31 19:56:05,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:56:05,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018311028] [2023-08-31 19:56:05,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:56:05,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:56:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:56:05,819 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 19:56:05,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:56:05,860 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 19:56:05,860 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 19:56:05,861 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2023-08-31 19:56:05,862 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2023-08-31 19:56:05,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2023-08-31 19:56:05,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2023-08-31 19:56:05,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2023-08-31 19:56:05,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2023-08-31 19:56:05,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2023-08-31 19:56:05,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2023-08-31 19:56:05,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2023-08-31 19:56:05,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2023-08-31 19:56:05,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2023-08-31 19:56:05,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2023-08-31 19:56:05,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2023-08-31 19:56:05,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2023-08-31 19:56:05,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 19:56:05,867 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:56:05,871 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:56:05,871 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:56:05,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:56:05 BasicIcfg [2023-08-31 19:56:05,919 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:56:05,920 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:56:05,920 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:56:05,920 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:56:05,920 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:56:00" (3/4) ... [2023-08-31 19:56:05,922 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-31 19:56:05,922 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:56:05,922 INFO L158 Benchmark]: Toolchain (without parser) took 6311.69ms. Allocated memory was 69.2MB in the beginning and 283.1MB in the end (delta: 213.9MB). Free memory was 40.9MB in the beginning and 221.5MB in the end (delta: -180.7MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. [2023-08-31 19:56:05,923 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 52.4MB. Free memory was 30.5MB in the beginning and 30.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:56:05,923 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.28ms. Allocated memory is still 69.2MB. Free memory was 40.7MB in the beginning and 36.0MB in the end (delta: 4.7MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2023-08-31 19:56:05,923 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.69ms. Allocated memory is still 69.2MB. Free memory was 36.0MB in the beginning and 33.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:56:05,923 INFO L158 Benchmark]: Boogie Preprocessor took 41.63ms. Allocated memory is still 69.2MB. Free memory was 33.5MB in the beginning and 31.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:56:05,923 INFO L158 Benchmark]: RCFGBuilder took 376.31ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 31.5MB in the beginning and 56.5MB in the end (delta: -25.0MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2023-08-31 19:56:05,924 INFO L158 Benchmark]: TraceAbstraction took 5353.28ms. Allocated memory was 92.3MB in the beginning and 283.1MB in the end (delta: 190.8MB). Free memory was 55.6MB in the beginning and 221.5MB in the end (delta: -166.0MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2023-08-31 19:56:05,924 INFO L158 Benchmark]: Witness Printer took 2.52ms. Allocated memory is still 283.1MB. Free memory is still 221.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:56:05,926 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 52.4MB. Free memory was 30.5MB in the beginning and 30.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 487.28ms. Allocated memory is still 69.2MB. Free memory was 40.7MB in the beginning and 36.0MB in the end (delta: 4.7MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.69ms. Allocated memory is still 69.2MB. Free memory was 36.0MB in the beginning and 33.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.63ms. Allocated memory is still 69.2MB. Free memory was 33.5MB in the beginning and 31.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 376.31ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 31.5MB in the beginning and 56.5MB in the end (delta: -25.0MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * TraceAbstraction took 5353.28ms. Allocated memory was 92.3MB in the beginning and 283.1MB in the end (delta: 190.8MB). Free memory was 55.6MB in the beginning and 221.5MB in the end (delta: -166.0MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. * Witness Printer took 2.52ms. Allocated memory is still 283.1MB. Free memory is still 221.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.4s, 96 PlacesBefore, 49 PlacesAfterwards, 92 TransitionsBefore, 45 TransitionsAfterwards, 1860 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, 12178 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3004, independent: 2482, independent conditional: 0, independent unconditional: 2482, dependent: 522, dependent conditional: 0, dependent unconditional: 522, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 831, independent: 752, independent conditional: 0, independent unconditional: 752, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3004, independent: 1730, independent conditional: 0, independent unconditional: 1730, dependent: 443, dependent conditional: 0, dependent unconditional: 443, unknown: 831, unknown conditional: 0, unknown unconditional: 831] , Statistics on independence cache: Total cache size (in pairs): 207, Positive cache size: 163, Positive conditional cache size: 0, Positive unconditional cache size: 163, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1245]: Data race detected Data race detected The following path leads to a data race: [L1227] 0 data *d; [L1228] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1237] 0 pthread_t id; [L1238] 0 data *z; [L1239] 0 d = malloc(sizeof(data)) [L1240] 0 z = d [L1241] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, d={-2:0}, id={9:0}, m={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, z={-2:0}] [L1243] EXPR 0 d->x VAL [arg={0:0}, d->x=25, d={-2:0}, id={9:0}, m={1:0}, z={-2:0}] [L1243] 0 printf("%d\n",d->x) [L1231] EXPR 1 d->x VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1231] 1 d->x = 3 VAL [arg={0:0}, arg={0:0}, d->x = 3=27, d={-2:0}, m={1:0}] [L1245] EXPR 0 z->y VAL [arg={0:0}, arg={0:0}, d->x = 3=27, d={-2:0}, id={9:0}, m={1:0}, z->y=26, z={-2:0}] [L1231] 1 d->x = 3 VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1232] EXPR 1 d->y VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1232] 1 d->y = 8 VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1232] 1 d->y = 8 VAL [arg={0:0}, arg={0:0}, d->y = 8=28, d={-2:0}, m={1:0}] [L1245] 0 printf("%d\n",z->y) VAL [arg={0:0}, arg={0:0}, d->y = 8=28, d={-2:0}, id={9:0}, m={1:0}, z->y=26, z={-2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d->y = 8 [1232] * C: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d = malloc(sizeof(data)) [1239] and C: printf("%d\n",z->y) [1245] - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 126 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.2s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 691 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 436 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 284 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1966 IncrementalHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 284 mSolverCounterUnsat, 17 mSDtfsCounter, 1966 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=975occurred in iteration=9, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 158 NumberOfCodeBlocks, 158 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 1182 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-31 19:56:05,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE